85 Chapter 4 Mainly men Angela Billington CHAPTER CONTENTS Introduction 85 Prevalence 86 Causes of LUTS in men 86 Assessing the problem 86 The urethra and pelvic floor 86 Postmicturition dribble 87 The prostate gland 87 Assessment of individuals with suspected prostate disease 91 To screen or not to screen? 95 Transrectal ultrasound and biopsy 96 BPH and prostate cancer: treatment options 96 Treatment of BPH 97 Treatment of prostate cancer 100 Postprostatectomy incontinence 102 Managing incontinence 103 Conduction aids 104 Indwelling catheterisation 105 Intermittent self-catheterisation 108 Occlusive devices 108 Choice of product 108 Sexuality and LUTS 108 Conclusions 109 Ch004-F10347.indd 85 All we are, is the result of what we have thought. The mind is everything. What we think . . . we become. Buddha (563–483 BC) INTRODUCTION There are limited data about the incidence, spontaneous remission rates and risk factors for urinary incontinence (UI) in men. It is estimated that between 2.5 and 4 million adults experience continence problems in the UK (Continence Foundation 2000). In almost all community-based studies to date, the reported prevalence rates are less in men than in women by a 1:2 ratio; however, after the age of 65, prevalence rates are similar (Malmstein 1997, Stenzelius et al 2004). This said, the issue of incontinence in the younger male population cannot and should not be ignored. The type and age distribution are also different between the sexes, and the risk factors, although less investigated in men, seem to be different. Incontinence should not be considered an isolated problem in men, but rather as a component of a multifactorial problem. These are often referred to as LUTS (lower urinary tract symptoms) which include storage symptoms such as frequency, urgency and nocturia and voiding symptoms such as poor flow, hesitancy, intermittent flow and terminal dribbling. 6/22/2007 10:41:42 AM 86 PROMOTING CONTINENCE Whilst many of the causes of incontinence are not specific to either sex and the principles of continence promotion and incontinence management are generally common to both, the male urinary tract and associated structures do present some very specific issues of causality and management. An increasing focus and interest in men’s health should result in further research being undertaken in this area. The potential impact of UI on the life of an individual, male or female, should not be underestimated and much can be done to assist men who are experiencing continence problems. This chapter builds upon the principles covered throughout the book and focuses specifically upon those aspects of care that are considered to be ‘mostly pertinent to men’ – the causes of LUTS and prostate disease. CAUSES OF LUTS IN MEN The most likely cause of LUTS is related to the prostate. Symptoms can reflect either storage or voiding problems. Storage problems may be due to reduced capacity, which can be due to a small capacity bladder, incomplete emptying due to bladder outflow obstruction, increased detrusor activity due to idiopathic causes, or irritative problems caused by urinary tract infection, obstruction or bladder cancer. Outflow obstruction may be due to benign prostatic hyperplasia or prostate cancer, urethral or meatal obstruction, penile cancer or detrusor failure due to neuropathy, or may be drug induced with anticholinergics or opioids. ASSESSING THE PROBLEM PREVALENCE Prevalence of incontinence in men ranges from 3 to 39% depending on the population studied, the definition of incontinence used and the survey methods (Wilson et al 2005). A recent survey of men in four different cities in France, England, Korea and the Netherlands identified an incontinence prevalence rate in men over 65 years ranging from 8% in Seoul to 23% in Birmingham (Boyle et al 2003) but the authors suggest that cultural differences may contribute to the rates recorded. A systematic review of 21 studies reported a prevalence of UI in older men ranging from 11 to 34%. In the same review, the prevalence of daily UI in men ranged from 2 to 11%. Studies that use a broad definition of urinary incontinence, include older and institutionalised men, and/or use selfreporting methods, tend to report higher prevalence (Thom 1998). For any definition of UI there is an increase in prevalence with age. Due to differences in pathological anatomy and pathophysiology of urinary incontinence in men and women, there is a different distribution in incontinence subtypes. Hunskaar et al (2005) confirmed previous reports of the predominance of urge incontinence (40–80%) in men, followed by mixed forms of UI (10–30%) and stress incontinence (<10%). The increasing prevalence by age is due to urge incontinence rather than stress. Ch004-F10347.indd 86 Micturition does not conform to a standard pattern and exhibits wide variation between individuals (see Ch. 2). Few studies have examined voiding patterns of healthy volunteers and further baseline data are needed for both males and females. However, there appears to be little difference, at least in frequency of voiding, between the sexes (Denning 1996). The urethra and pelvic floor Males have an ‘S’-shaped urethra which is approximately 18–22 cm in length, compared to the shorter, straight urethra in females (3–5 cm). This factor is associated with a lower incidence of urinary tract infections (UTIs) in men compared to women. UTIs are, in turn, frequently cited as causes or risk factors for transient urinary incontinence by increasing sensory input from the bladder and contributing to urgency and detrusor instability. UTI may also exacerbate other types of bladder dysfunction. However, whilst the length and shape of the male urethra may have a protective function with regard to infection, these characteristics can contribute to other problems such as the ‘postmicturition dribble’ experienced by many men and discussed later in the chapter. Stress incontinence results primarily from a failure of the external urethral sphincter to accom- 6/22/2007 10:41:42 AM Mainly men modate increases in intra-abdominal pressure. The external (voluntary) sphincter is formed by the pelvic floor muscles; any factor contributing to a reduction in the strength of these muscles or in the patency of the seal formed by the urethra is therefore likely to predispose an individual to stress incontinence (see Chs 2 and 3). In fact, genuine stress incontinence is rare in neurologically normal males, although it may result from prostate surgery or chronic retention (RCP 1995). Postmicturition dribble Postmicturition dribble (PMD) describes the loss of a small amount of urine after voiding is completed. It is unique to men and is a common and annoying condition in later life and one which can affect quality of life. It can be an important factor in motivating men to consult their doctor. Milliard (1989) suggested that postmicturition dribble that is not associated with obstruction might be caused through the urethra being emptied incompletely by the muscles surrounding it. Denning (1996) suggests that it is caused by pooling of urine in the bulbar urethra which for some reason is abnormally lax and wide. Pelvic floor exercises or bulbar urethral massage are recommended as treatment for this annoying but benign problem. This technique is sometimes referred to as ‘milking the urethra’ and involves putting the ball of the thumb behind the testicles and pushing up and forward to exert pressure on the urethra, causing the urine to be expelled. The prostate gland The healthy prostate is a small gland about the size of a walnut lying just below the bladder. It forms part of the male reproductive system, is attached to the base of the bladder and surrounds the initial 3–4 cm of the urethra; the urethra passes through the centre of the gland to the penis. The main function of the prostate is to make a lubricant as part of the seminal fluid. It is suggested that the prostate acts a bit like a ‘junction box’ in that it allows the ducts that transport sperm from each testicle and the ducts that drain from the Ch004-F10347.indd 87 87 Bladder Prostatic urethra Prostate Ejaculatory duct openings External urethral sphincter a. Normal prostate Verumontanum Ejaculatory duct Urethra b. Frontal view Peripheral zone c. Sagittal view Transition zone Central zone Figure 4.1 Anatomy and morphology of the prostate. Reproduced with permission from Kirby & McConnell (2004). seminal vesicles to meet and then empty their contents into the urethra during ejaculation. The prostate gland is divided into two morphologically distinct zones, central and peripheral, that comprise 25% and 70% of the normal prostatic volume respectively. The remaining 5% of the normal gland consists of the transition zone which lies adjacent to the urethra and extends up to the bladder neck (Fig. 4.1). Although the histological characteristics of the transition zone and the peripheral zone are similar, the transition zone is the site of development of benign prostatic hyperplasia, while the adjacent peripheral zone is the more usual site of prostate cancer (Kirby et al 1994). Three main diseases of the prostate can affect urinary continence: 6/22/2007 10:41:42 AM 88 PROMOTING CONTINENCE Ch004-F10347.indd 88 a hesitant, interrupted, weak stream of urine straining to void. Irritative voiding symptoms: ● ● urgency and urge incontinence frequency of urination, especially at night. As the population ages it seems inevitable that the number of men presenting with BPH will increase. Prostate assessment clinics are a response to this perceived trend. The clinics aim to reduce waiting times, lead to prompt referral of those with severe symptoms and to provide better continuity and quality of care (Webb & Simpson 1997). Prostate cancer Prostate cancer is the most commonly diagnosed cancer in men in the UK, accounting for almost one in four of new male cancers diagnosed (Cancer Research UK 2006) and 14% of male deaths from cancer. This represents the second most common cause of male deaths from cancer after lung cancer (Figs 4.2 and 4.3). 100 Incidence Mortality 75 50 25 2004 2001 1998 1995 1992 0 1989 Limits fluid intake before travel Restricts fluid intake before bedtime Cannot drive for 2 hours without a break Disruption of sleep Limits going to places without toilets Limits playing outdoor sports Limits participation in social activities, e.g. going to the cinema, theatre or church ● 1986 • • • • • • • ● 1983 Box 4.1 Adverse effects of symptoms of BPH on activities of daily living Obstructive symptoms: 1980 Benign prostatic hyperplasia (BPH) is by far the most common disease of the prostate: 80% of presenting cases, compared with 18% prostate cancer and 2% prostatitis (Kirby et al 1994). BPH increases with age and this may reflect an age-related hormonal imbalance between testosterone and oestrogen. Classic autopsy studies (Ball et al 1981) have shown that histological BPH appears to rise to 50% in men in their 60s and to 90% in men over 80 years of age; however, the proportion of men with palpable prostatic enlargement or symptoms is less, with a prevalence of 21% in men aged 50 and 60 years, rising to 53% in men in their 80s. A population study from Stirling, UK (Garroway & Collins 1991), also reported a prevalence of symptomatic BPH of 43% in men over 60. BPH is one of the most common diseases to affect men beyond middle age and is now so common among older men that its absence could be regarded as abnormal (Webb & Simpson 1997). About half of the men with evidence of BPH (more than 20 g, symptoms of LUTS and a peak flow less than 15 ml/s) reported interference with one or more activities of daily living (Box 4.1). BPH is rarely a life-threatening condition when appropriately assessed and managed. Deterioration in symptoms and urinary flow is usually slow, and serious outcomes, such as renal insufficiency, are uncommon. The incidence of acute retention increases with prostate size and requires 1977 Benign prostatic hyperplasia 1974 ● urgent treatment. The relatively less serious symptoms of frequency, nocturia and incomplete emptying can nevertheless be very bothersome and may substantially impact on the patient’s quality of life. In addition, men with LUTS due to BPH are also prone to erectile dysfunction and disorders of ejaculation (Dorey 2001a). The symptoms of BPH can vary but the typical ones are: 1971 ● benign prostatic hyperplasia prostate cancer prostatitis. Rate per 100,000 population ● Year of registration/death Figure 4.2 Incidence and mortality rates for prostate cancer. Reproduced from Cancer Research UK (2006). 6/22/2007 10:41:42 AM Mainly men USA Sweden Canada Switzerland Australia France Netherlands Brazil UK Italy Denmark Zimbabwe Singapore Japan India China Table 4.1 Gleason grading system Incidence Grade Histological characteristics Probability of local progression over 10 years (%) 1–4 5–7 Well differentiated cancer Moderately differentiated cancer Poorly differentiated cancer 25 50 8–10 75 Mortality 0 20 40 60 80 100 120 140 Rate per 100,000 males Figure 4.3 Incidence and mortality rates, prostate cancer in selected countries. Reproduced from Cancer Research UK (2006). Ethnic variations appear to exist and death rates are raised in Caribbean and West African men. In terms of prevalence, prostate cancer shows a similar pattern to BPH, in that it is generally a disease of older men and is rare in the under-50 age group. By the age of 80 about half of all men will have a focus of cancer in their prostate, although only 1 in 25 males will actually die from it (DH 2000a). Treatments for prostate cancer can lead to the unwanted side effect of urinary incontinence. Indeed continence may be the second ‘big C’ they must confront as they begin to cope with the impact of the cancer treatment. Although bladder disturbance can be temporary, patients view their incontinence as disabling with a negative effect on their quality of life (Butler et al 2001). The stage and grade of prostate cancer There are a number of ways to treat prostate cancer depending upon how far the disease has spread. There are four basic stages: by convention the letters ‘TNM system’ (tumour, node, metastases) is used as a prefix for the stage of the cancer (i.e. T1, T2, T3, T4). Staging is extremely important in the decision-making process; if the cancer has spread beyond the prostate margins surgery will not be curative (Fig. 4.4). Ch004-F10347.indd 89 89 To help decide whether the cancer is likely to progress quickly the tumour grade is scored using a graded scale invented by Dr Donald Gleason. This system assigns a grade ranging from 1 to 5 based on the arrangement of the cancer cells in relation to normal prostate cells. If the cancer cell cluster resembles the small, regular, evenly spaced glands of normal prostate tissue, a Gleason grade of 1 is assigned. If the cancer cells lack these features and seem to spread haphazardly, it is a grade 5. Because prostate cancers often have areas with different grades, primary and secondary grades are given to the two areas that make up the most cancer. The Gleason score is therefore made up of the two grades (e.g. 3 + 2 = 5); the higher the score out of 10, the more likely that the cancer will grow and spread rapidly (Table 4.1). In view of the non-specific nature of prostatic symptoms, careful diagnosis is important. There are three recognised methods of distinguishing prostate cancer from BPH: prostate-specific antigen (PSA), digital rectal examination and transrectal needle biopsy. The cause of prostate cancer is unknown. However, several risk factors have been identified: ● ● ● Having relatives who have had cancer of the prostate Belonging to certain ethnic groups (African– Caribbean/African–American) Eating a diet high in animal fat and protein (DH 2000a). The symptoms of BPH and prostate cancer are often similar and the majority of men with these symptoms have benign disease. However, some individuals who have cancer are asymptomatic and, for some, symptoms occur only at the late 6/22/2007 10:41:43 AM 90 PROMOTING CONTINENCE T1 T2 T3 T4 Figure 4.4 Local staging of prostate cancer. The tumour may advance from T1 to T4 with or without the development of metastases. Reproduced with permission from Kirby & McConnell (2004). stages of the disease. Clearly early diagnosis is important and will be discussed later. Prostatitis The prostate is spongy and contains innumerable channels and ducts, which can be prone to infection. If an obstruction such as a urethral stricture Ch004-F10347.indd 90 occurs distal to the prostate, infected urine maybe forced into the prostatic ducts and cause prostatitis. Acute prostatitis can occur without warning with a systemic illness marked by rigors, fever and muscular pain. Clinically, the patient is very uncomfortable and feels aching in the perineum, which radiates to the thighs and penis. Passing urine is painful and the stream may be thin, with 6/22/2007 10:41:43 AM Mainly men Box 4.2 Common symptoms of acute prostatitis Box 4.3 Prostate assessment procedure performed by specialist nurse • Penile, pelvic or rectal pain, often felt deep between the legs, which is worse on sitting • Frequency or discomfort on passing urine • Pain on or after ejaculation • Quick (premature ejaculation), delayed (retarded ejaculation) or unsatisfactory ejaculation • Rarely, blood in semen (haemospermia), more likely if infection present • The patient is asked to attend with a full bladder and to bring an early morning specimen of urine • Patient history should include any relevant medical or surgical history, lower urinary tract symptoms and contributory factors such as constipation, fluid intake and drug therapy • International Prostate Symptom Score (I-PSS) • Urinary flow measurement (preferably two) • Postvoid residual • Urinalysis for leucocytes, nitrites and/or blood • Digital rectal examination • Blood tests for prostate specific antigen (PSA), urea and creatinine • Frequency/volume chart symptoms of frequency and often a high fever (Box 4.2). Palpation reveals a tender, swollen prostate and the urine may or may not grow pathogens on culture. If organisms are identified they should be treated with either a fluoroquinolone or a sulfabased antibiotic such as trimethoprim that can penetrate the prostatic tissue in adequate quantities. Treatment must be given for 6 weeks for acute flare-ups and 12 weeks for those patients who are chronically symptomatic. Prophylactic or suppressive antibiotics plus prostatic massage may be required in refractory, relapsing or recurrent disease. Surgery, except as definitive therapy for a lower urinary tract problem (e.g. bladder neck stenosis or urethral stricture), should be considered only as a last resort (Kirby R 1997). ASSESSMENT OF INDIVIDUALS WITH SUSPECTED PROSTATE DISEASE Urinary incontinence is an embarrassing and unpleasant complaint which many people hide from their families, friends and indeed healthcare professionals. Men seem to be particularly reluctant to seek help, often seeing incontinence as a ‘woman’s problem’ (Hunskaar & Sandvik 1993). Most men with incontinence or evidence of urinary tract outflow symptoms can be managed in primary care. The outcome is likely to be improved if the patient and healthcare professional decide on treatment in partnership, with promotion of self-management (NICE 2000). It is widely accepted that general screening for prostate disease is not practicable but opportunistic questioning can play a vital role in identifying cases of prostatic disease. There are three essential questions: Ch004-F10347.indd 91 ● ● ● 91 Are you bothered by your bladder symptoms? Do you get up at night to urinate more than twice? Have you recognised a change in your urinary flow? Further investigation should be offered if the patient answers yes to more than one of these questions (Billington 1999). Completing the International Prostate Symptom Score (I-PSS) (Barry et al 1992), one of several validated tools used to assess the severity of an individual’s symptoms (Fig. 4.5), and a full prostatic assessment (Box 4.3) (Billington 1999) provide a qualitative and quantitative assessment of the impact and extent of prostatic symptoms. Investigations should include the following. International Prostate Symptom Score (I-PSS) The I-PSS is used to check the ‘bother’ factor for the patient. A score of less than 7 indicates mild symptoms, 8–19 moderate symptoms, and more than 18, severe symptoms. Those with a symptom score of more than 19 should be referred for further medical advice. Any assessment should include reference to the impact that the individual’s prostate problem is having on their life in general. Although the single question shown in Figure 4.5 will not capture the total impact of symptoms on 6/22/2007 10:41:43 AM Ch004-F10347.indd 92 0 0 None Weak stream Over the past month how often have you had a weak urinary stream? Straining Over the past month, how often have you had to push or strain to begin urination? 5. 6. 1 1 1 1 2 2 times 2 2 2 2 2 2 3 3 times 3 3 3 3 3 3 Less than About half half the the time time 4 4 times 4 4 4 4 4 4 More than half the time 5 5 times or more 5 5 5 5 5 5 Almost always Your score 1 Pleased 2 Mostly satisfied 3 Mixed – about equally satisfied and dissatisfied 4 Most dissatisfied unhappy 5 Terrible 20–35 = severely symptomatic Figure 4.5 International Prostate Symptom Score (I-PSS). Reproduced with permission from Barry et al (1992). 0 Delighted 8–19 = moderately symptomatic If you were to spend the rest of your life with your urinary condition just the way it is now, how would you feel about that? Quality of life due to urinary symptoms 1–7 = mildly symptomatic The total score can range from 0–35 (asymptomatic to very symptomatic). Although there are at present no standard recommendations on grading patients with mild, moderate or severe symptoms, patients can be tentatively classified as follows: Total I-PSS score 0 1 time 0 Urgency Over the past month how often have you found it difficult to postpone urination? 4. 7. Nocturia Over the past month, how many times did you most typically get up to urinate from the time you went to bed at night until the time you got up in the morning? 1 0 Intermittency Over the past month how often have you found you stopped and started again several times when you urinate? 3. 1 0 Frequency Over the past month how often have you had to urinate again less than 2 hours after you finished urinating? 2. 1 Less than one time in five Incomplete emptying Over the past month how often have you had the sensation of not emptying your bladder completely after you finish urinating? 0 Not at all 1. Date Patient Name 92 PROMOTING CONTINENCE 6/22/2007 10:41:43 AM Mainly men quality of life, it may serve as a valuable starting point on which to base further conversation between the practitioner and the patient. exclude BPH. It may be useful as a safety measure in monitoring the progress of patients who opt for watchful waiting. Frequency/volume chart Urinalysis This provides an indication of fluid intake patterns, type of fluid drunk, functional bladder capacity, frequency and the presence and degree of nocturia experienced (see Ch. 2). Urinalysis, either by dipstick or by microscopic examination of sediment, should be performed in all men presenting with LUTS. Urinalysis helps to distinguish BPH from urinary tract infection or bladder cancer, which may produce similar symptoms. If urinalysis is positive, urine microscopy and culture should be carried out and further imaging and evaluation of the renal tract considered. Urine cytology should be requested in those with severely irritative symptoms or haematuria to exclude carcinoma in situ of the bladder. If urine cytology is positive, renal ultrasound and lower tract endoscopy and biopsy are mandatory; CT scan is optional (Kirby & McConnell 2004). Uroflowmetry Uroflowmetry provides a simple means of quantifying the degree of outflow obstruction. Electronic measurement of urine flow rates is an extremely useful, non-invasive test in most patients with BPH (Fig. 4.6) and is helpful in identifying patients whose peak flow rate is not diminished and thus unlikely to benefit from surgery. Such patients are more likely to be complaining of an overactive bladder rather than BPH. Uroflowmetry measures a number of parameters of obstruction, of which the most important is the peak flow rate. A peak flow rate below 15 ml/s (with voided volume of at least 150 ml) suggests obstruction (Kirby & McConnell 2004) although in older men (70–80 years of age) values of 10 and 15 ml/s may be normal. The presence of a markedly reduced peak flow rate (<10 ml/s) usually indicates some degree of obstruction which is most often caused by BPH. Uroflowmetry is an inadequate test to assess obstruction versus impaired detrusor function as the cause of a low flow rate and is prone to artefact if the bladder volume is less than 150 ml. Postvoid residual (PVR) PVR is measured by transabdominal ultrasound and is a useful optional test in the evaluation of BPH, especially in combination with uroflowmetry, as it can help separate patients who are likely to respond to watchful waiting or medical therapy from those who may not. In general, PVR values above 200–300 ml usually indicate a higher likelihood of medical therapy failing, and probably also indicate a higher risk of acute urinary retention (AUR). The test cannot be used to confirm or Ch004-F10347.indd 93 93 Digital rectal examination Digital rectal examination (DRE) should be performed on all men with LUTS. Although the prostate is readily palpated by DRE, in its early stages prostate cancer is seldom detectable. DRE is usually performed by the patient’s GP, but nurse specialists may also conduct DRE. The test provides vital information regarding size of the prostate, consistency and anatomical limits. A normal prostate feels smooth, about the size of a walnut, with the lateral and cranial borders and medial sulcus of the prostate being identifiable; the seminal vesicles should be impalpable. An enlarged prostate is indicative of BPH, whereas a hardened, nodular prostate, or an immobile prostate, is suggestive of cancer. The examination may feel uncomfortable but tenderness upon examination is an indication of prostatitis (Table 4.2). The examination also allows the nurse to assess rectal muscle strength and skin health in the perianal area. Overall, DRE in isolation is less than 50% accurate in detecting prostate cancer and is usually done in conjunction with PSA (DH 2000a). Blood tests Blood tests should be performed for renal function and to measure PSA, a protein produced by the 6/22/2007 10:41:43 AM 94 PROMOTING CONTINENCE a 20 Flow rate ml/s 15 Normal Parameter Normal BPH BPH Voiding time 17 seconds 79 seconds Flow time 17 seconds 73 seconds Time to maximum flow 7 seconds 9 seconds Maximum flow rate 19.6 ml/s 13.3 ml/s Average flow rate 12.1 ml/s 6.0 ml/s Voided volume 406 ml 246 ml 10 5 0 0 10 20 30 40 50 60 70 80 Time (seconds) b Figure 4.6 Uroflowmetry using a flowmeter (a) measures a number of parameters of obstruction (b) that are usually altered in patients with BPH. (b) Reproduced with permission from Kirby & McConnell (2004). prostate. Creatinine and electrolyte levels are measured to check renal function, as some 10% of patients with BPH who have seen a urologist have some renal impairment (Kirby M 1997). Prostate enlargement tends to cause an increase in the level Ch004-F10347.indd 94 of the PSA, with malignant tumours producing a greater increase than benign enlargement. However, other conditions can also cause PSA to rise, such as a UTI and prostatitis. Although serum PSA testing has fundamentally transformed the 6/22/2007 10:41:43 AM Mainly men Table 4.2 Assessment through digital rectal examination Characteristic Appearance Size The normal prostate gland is the size of a walnut; enlargement occurs in both BPH and prostate cancer A normal prostate is smooth or elastic The lateral lobes are symmetric and divided by a palpable sulcus A tender prostate may indicate prostatitis A hard nodular prostate may indicate prostate cancer A malignant prostate gland may be fixed to adjacent structures Consistency Mobility diagnosis and treatment of prostate cancer, the ability of PSA to correctly discern cancer from benign disease is imperfect. This has prompted efforts to improve the diagnostic capability of PSA assays. Produced by epithelial cells and secreted into the prostatic ducts, PSA is a serine protease that may enter the systemic blood circulation where it exists in several forms that are classified into two broad categories: unbound or ‘free’ forms (fPSA) and bound or ‘complexed’ forms (cPSA). Three different PSA assays are commercially available and applicable to clinical urology: tPSA, fPSA and cPSA. The oldest, most ubiquitous assay is the tPSA assay, which measures all immunoreactive forms of PSA, free and complexed, present in serum, i.e. total PSA. The tPSA assay is sensitive for prostate cancer detection but suffers from low specificity. Low specificity increases the number of unnecessary biopsies, and it is this diagnostic shortcoming that newer assays have sought to rectify. The fPSA assay provides the percentage of free PSA (%fPSA, the ratio of fPSA to tPSA) which has greater specificity than tPSA for prostate cancer. When applied properly, fPSA may reduce unnecessary biopsies on 20% of men with tPSA in the 4–10 ng/ml range (Catalona et al 1998). The cPSA assay was also developed to improve specificity. The rationale for cPSA testing is that the proportion of cPSA is greater in men with prostate cancer (Kellogg Parsons & Partin 2004). Ch004-F10347.indd 95 95 cPSA is a versatile assay applicable to population screening and diagnosis, and to prediction of pathological stage and longitudinal serum monitoring in patients with prostate cancer. For detection of cancer, cPSA is significantly more specific than tPSA at all clinically relevant sensitivities, is as specific as %fPSA and is less costly. Kellogg Parsons and Partin recommend that cPSA is used as the initial diagnostic test for prostate cancer with a preliminary recommended threshold of 3.2 ng/ml or greater for biopsy. They also recommend that cPSA could be used in staging nomograms and longitudinal evaluation of patients with prostate cancer. This would have the benefit of reducing the number of unnecessary biopsies, diminish screening costs and potentially minimise the confusion associated with multiple serum assays. Therefore, although a slight elevation in the PSA may indicate prostate cancer, it is by no means definite; approximately two out of three men with a raised PSA will not have prostate cancer. The advantage of PSA testing is that it can find cancer before symptoms develop and may detect cancer at an early stage when treatment could be beneficial. The downside is that it can miss cancer and provide false reassurance; alternately, false positives may cause unnecessary anxiety and medical tests when no cancer is present. It may detect slow-growing cancer that may never cause any symptoms or shorten lifespan. The PSA debate is a complex one. To screen or not to screen? Although there is pressure to introduce prostate cancer screening within the UK, the view of the National Screening Committee (2000a,b) is that there is currently no high-quality evidence that screening reduces mortality and that present knowledge about prostate cancer does not conform to the majority of the 10 principles that should govern a national screening programme, proposed by the World Health Organization in 1968. Yet screening is recommended in other countries, particularly the USA. Men or their partners obtain information about PSA from websites and may request or even demand testing. Further ethical issues surround those correctly identified as having prostate cancer as it is often impossible to 6/22/2007 10:41:44 AM 96 PROMOTING CONTINENCE distinguish between slow-growing tumours that cause no harm and fast-growing tumours that kill (DH 2000a). If screening were to be introduced, some men with low-grade prostate cancer might be subjected to traumatic treatment with the unpleasant side effects of erectile dysfunction and incontinence, who might never have suffered any ill effects from prostate cancer in their lifetime. The National Institute for Health and Clinical Excellence (NICE) is due to report on Prostate Cancer: Diagnosis and Treatment in November 2007. For those men concerned about the possibility of prostate cancer, the PSA test is still available. However, clear information about the benefits and risks of testing should be provided to men to ensure that they are fully informed of the reliability of the test before giving consent. The impetus for improvement in this area of care comes from the Prostate Cancer Risk Management Programme (http:/www.cancerscreening.nhs.uk/prostate) which provides information packs for GPs and for patients, with guidance on understanding the PSA test, and through the National Prostate Cancer Programme which funds an extensive programme of research on all aspects of prostate cancer diagnosis and treatment (DH 2000a). At present, prostate screening is not recommended for routine use, based on evidence provided in two systematic reviews of the literature (Chamberlain et al 1997, Selley et al 1997). Further work is being funded in this area, but this does not affect the clinical management of men with symptoms of prostate cancer. European Randomised Study of Screening for Prostate Cancer (ERSPC) The ERSPC study is currently the largest randomised controlled trial of prostate cancer screening. It aims to determine whether the effect of early detection and treatment of prostate cancer will reduce deaths from prostate cancer. There are eight participating centres: the Netherlands, Sweden, Finland, Belgium, Italy, Portugal, Spain and Switzerland. Recruitment to the study is still underway and the target is to recruit 180 000 men in total. Each man will be chosen at random to either be screened for prostate cancer (using the Ch004-F10347.indd 96 PSA test with or without DRE) or join a control group which will not be screened. The first results from the study are expected before 2010. Transrectal ultrasound and biopsy When DRE and/or PSA abnormalities are present, transrectal ultrasound (TRUS) provides the most convenient and accurate way of obtaining prostatic biopsies. An automatic biopsy needle is advanced transrectally under ultrasound control and sextant prostate biopsies are taken. With adequate antibiotic cover (typically ciprofloxacin within 24 h of the biopsy), morbidity of TRUS biopsy is minimal and infectious complications occur in approximately 2% (Desmond et al 1993). Clearly other causes of urinary symptoms (e.g. infection, overactive bladder or stress incontinence) need to be excluded and a comprehensive baseline assessment in keeping with that currently recommended by the Department of Health (2000a) applies equally to those presenting with prostate symptoms. However, when an individual presents with acute urinary retention its immediate relief is an urgent priority if backpressure on the kidneys is to be prevented. Having decided on the diagnosis, treatment options need to be explored. BPH and prostate cancer: treatment options The treatment of BPH and prostate cancer do have some similarities, but also marked differences. They are therefore considered separately for ease of discussion. The main treatment options are discussed within this section. For a more comprehensive and detailed account, the reader is referred to more specialist texts. In males with BPH, if there is no urgent reason to refer, a period of conservative treatment of 3 months is recommended (Abrams 1997, Feneley et al 1999). If the patient has mild to moderate obstructive symptoms, medical management with alpha-blockers and/or 5-alpha reductase inhibitors is generally the first approach. For those with irritative voiding symptoms, bladder training, advice on fluid intake, pelvic floor exercises, plus or minus an anticholinergic drug if the patient is 6/22/2007 10:41:44 AM Mainly men thought to have detrusor instability, may also assist. It is not uncommon for some men to experience a year or more during which their prostate irritates them, only for symptoms to get better without any treatment (Blandy 1998). Men can be taught how to carry out pelvic floor exercises in the same way as women (see following radical prostatectomy later in the chapter for further details), but have the added advantage that by practising in front of a mirror they can observe muscle contraction at the base of the penis and a scrotal lift. They can also learn to palpate muscle contraction at the perineum 2 cm medially and 2 cm anteriorly to the ischial tuberosity (Dorey 2001b). This is useful when teaching and learning the correct technique but the frequency and intensity of the exercise regime are determined by individual assessment and DRE. Although it is common practice to recommend that men practise pelvic floor muscle training (PFMT) prior to transurethral resection of the prostate (TURP), there are no substantive data to support this practice. Medical management of BPH has revolutionised the care that men are now receiving and consists primarily of alpha-blockers and/or 5-alpha reductase inhibitors. Surgery has become the secondary rather than the primary treatment for those with mild symptoms. Surgery as the first choice is still indicated for men who are experiencing persistent, moderate or severe symptoms or who have had acute urinary retention. Surgical prostate ablation, by TURP or less frequently open prostatectomy, is still the ‘gold standard’ and produces the greatest measurable and long-term reduction in both symptoms and bladder outlet obstruction (Feneley et al 1999). Other methods of ablation (e.g. laser techniques) are newer and evidence of their efficacy is currently limited. Treatment of BPH As suggested earlier, conservative treatment or ‘watchful waiting’ is the preferred option for men with mild symptoms as disease progression is uncertain and often slow (Billington 1999). If the patient wishes to try drug therapy an alphablocker (e.g. prazosin, indoramin) is usually the treatment of first choice for BPH, since its effects, Ch004-F10347.indd 97 97 if any, are immediate (Feneley et al 1999). These drugs improve both filling and voiding symptoms in BPH by relaxing smooth muscle and reducing urethral resistance. Caution is advised in the treatment of older men or those on antihypertensives using this method. However, some drugs are now said to be more urospecific or selective and therefore to have fewer side effects (e.g. alfuzosin). Nonetheless, patients using these drugs should be advised of potential side effects such as postural hypotension and dizziness. The use of 5-alpha reductase inhibitors to shrink the epithelial part of the gland is another option. The action of drugs such as finasteride is to reduce the size of the prostate by suppressing plasma levels of dihydrotestosterone (DHT), the principal agent causing prostatic enlargement. However, it is suggested that these drugs benefit only a minority of men, with maximum effect taking at least 6 months to be achieved (Feneley et al 1999). Men receiving alpha reductase inhibitors need to be warned of potential side effects such as erectile dysfunction, reduced ejaculate volume and loss of libido (Billington 1999) (Tables 4.3 and 4.4). Surgical treatment of BPH most commonly involves transurethral resection of the prostate. An instrument is passed along the urethra to the prostate gland and the enlarged prostate is ‘pared’ away from inside the urethra (Fig. 4.7). The process can easily be visualised if you imagine the coring of an apple. The aim of this technique is to relieve the obstruction at the bladder neck and thereby relieve the retention of urine. The process of TURP may have to be repeated several times as the prostate continues to enlarge and the frequency at which surgery has to be repeated varies between individuals. The procedure is usually performed under general anaesthetic and is a relatively successful option for those who are fit enough to undergo surgery. Other forms of prostate ablation such as transurethral incision of the prostate and laser therapy are becoming increasingly popular, although TURP is still the more usual procedure. Other alternatives such as the use of radiowaves, microwaves and prostatic stent insertion (a coillike catheter that is placed in the prostatic urethra) are also used (Downey 2000). However, an open 6/22/2007 10:41:44 AM 98 PROMOTING CONTINENCE Table 4.3 Drug dosage and potential side effects Drug Dosage Side effect 5-alpha reductase inhibitor Finasteride 5 mg od for 6 months, thereafter continue long term Impotence 3% or reduced ejaculate Selective alpha agents Doxazosin Indoramin Prazosin Terazosin 1–8 mg od 20 mg 0.5–2 mg bd 5–10 mg, gradually increasing od Postural hypotension or dizziness Super selective alpha agents Alfuzosin Tamsulosin 2.5 mg tds/5 mg bd 0.4 mg od Urinary drainage bag Continuous bladder washout with sterile saline For inflation of balloon with 30–50 ml sterile water Urethra Symphysis pubis Symphysis pubis Prostatic bed Prostate Balloon Cutting electrode Bladder Shards Bowel (a) Bowel (b) Figure 4.7 (a) Transurethral resection of prostate (TURP). (b) Three-way catheter allowing continuous irrigation of the bladder to remove shards of prostate tissue. Ch004-F10347.indd 98 6/22/2007 10:41:44 AM Mainly men Table 4.4 Side effects of prostate cancer treatments Treatment Side effects Radical Incontinence prostatectomy Impotence Radiotherapy Diarrhoea Colitis Rectal pain/bleeding Urinary frequency Impotence Antiandrogen Absent libido Impotence Hot flushes Breast tenderness Cardiovascular problems Chemotherapy Most side effects are temporary and include nausea, vomiting, loss of appetite Percentage with side effects 65 80 10 5–10 40–60 90 100 prostatectomy will be done when men have very enlarged glands as the length of time to remove the tissue endoscopically would be excessive and place the patient at risk of haemorrhage from the resection site and deep venous thrombosis from venous stasis after prolonged leg elevation in stirrups (Game & Farrer 1989). Complications following TURP All surgery carries risks. Prostate surgery can result in urinary incontinence and/or retrograde ejaculation, aside from the possibility of immediate postsurgical complications such as haemorrhage and hypovolaemic shock (Morrison et al 1994). Postsurgical urinary incontinence is attributed to the trauma associated with surgery in the area of the bladder neck. Newer treatments such as radiowave (transurethral needle ablation) and laser therapy tend to be associated with less incontinence (Downey 2000). Nearly all men who have undergone TURP experience retrograde ejaculation. Small numbers Ch004-F10347.indd 99 99 of men also suffer from erectile dysfunction for reasons not well understood. Both erectile dysfunction and urinary incontinence are associated with open prostatectomy (Downey 2000). It is therefore particularly important that consent to surgery is informed and that men are aware of the potential urinary and sexual problems that may follow. Sexual problems such as erectile dysfunction can sometimes be the result of anxiety rather than a direct consequence of the surgery. Whatever the underlying cause of the problem, referral to a specialist clinic is the main course of action. The impact that a loss of potency and incontinence can have on an individual in terms of self-image should not be ignored and is considered in more detail later. A programme to assist the achievement of full continence after prostatectomy should be instigated as soon as possible (see the ‘Advice sheet’ in Box 4.4). Several options exist to promote postsurgical urinary continence, including pelvic floor re-education and bladder training programmes. Evidence to support the effectiveness of PFMT after TURP is weak and further research is required to elucidate the benefit. A recent Cochrane Review by Hunter et al (2006) of the conservative management of incontinence after TURP concluded that its value remains unclear and that men’s symptoms tended to improve over time irrespective of treatment. After radical prostatectomy, there may be modest benefit up to 3 months post surgery of initiating a PFMT routine. Nonetheless, some support for the benefit of pelvic floor re-education and bladder retraining in treating urinary incontinence does exist although more trials are clearly indicated (DH 2000b). Insertion of an artificial urethral sphincter (Fig. 4.8) may be an option for a small proportion of men with intractable postprostatectomy incontinence (Cheater 1996). Venn et al (2000) reviewed long-term outcomes following sphincter implantation and concluded that postprostatectomy incontinence seemed especially amenable to such treatment. Fluid volume or specifically designed bladder training charts such as that reproduced in Figure 2.9 can be useful in helping both the patient and the healthcare professional assess and monitor the improvement of urinary symptoms. 6/22/2007 10:41:44 AM 100 PROMOTING CONTINENCE Box 4.4 sheet General postprostatectomy advice It is anticipated that following the removal of your catheter you will experience a degree of urinary urgency and leakage specifically on movement. To reduce this leakage and help regain bladder control, a programme of pelvic floor exercises and bladder retraining is suggested. 1. Pelvic floor exercises help to retrain the muscles around the bladder neck; try to do the exercises five slow and five fast, 10 times a day (total 100 exercises). 2. After-dribble is also a common problem and can be cured by a simple milking technique (squeeze and lift) or push up behind the scrotum and straighten the penis forward. This dislodges the urine trapped in the bend of the urethra (the tube from the bladder). 3. Bladder retraining will help rectify the frequency and urgency. It is common to have altered bladder sensation following prostate surgery. It is often helpful to keep a diary of how often you pass urine and then try to work on holding on or delaying voiding for a few minutes. As your bladder responds to this training the frequency will reduce. 4. Fluid intake is important. Do not restrict your fluids as concentrated urine will irritate your bladder and make your urgency worse and also increase your risk of urinary infection. Try to consume 8–10 drinks a day and avoid caffeinated fluids as these tend to irritate the bladder and also have a diuretic effect (pass through the body more quickly than water or decaffeinated drinks). 5. Constipation is also a common problem; ask your healthcare professional for advice. A dietary supplement of linseed may help. 6. It is generally advisable to purchase extra protection for a few days. Disposable pads are available in many shapes and sizes. Products are available from most chemists but ask your healthcare professional for advice. Treatment of prostate cancer The treatment and care of men diagnosed with prostate cancer depends upon the extent of the disease although the evidence base for these decisions is limited. For early stage cancer the options Ch004-F10347.indd 100 Reservoir of fluid Periurethral cuff Cuff inflation pump Figure 4.8 An artificial sphincter. include ‘watchful waiting’ (to determine whether the cancer is active or slow growing), radical prostatectomy and radiotherapy. For cancer that has spread beyond the prostate, radiotherapy and hormone therapy remain the main treatment options (DH 2000a). Treatment decisions are largely dependent on the stage of the cancer at the time of diagnosis. There are a number of options, each with its advantages and disadvantages, and include surgery, radiotherapy and drug therapy. For early localised disease there are considered two curative options: 1. Radical radiotherapy treats cancer by using highenergy rays that destroy cancer cells. For prostate cancer this may be achieved in two ways: using an external beam that produces X-rays that focus on the prostate from outside of the body or using brachytherapy. The latter involves the insertion (under a general anaesthetic) of small radioactive seeds that release radiation slowly over time. Both forms of radiotherapy have side effects, but brachytherapy appears to result in less damage to the bowel and less erectile dysfunction (DH 2000a). 2. Radical prostatectomy involves removal of the prostate gland, prostatic capsule, seminal vesicles and prostatic urethra. Intraoperative nerve stimulation techniques have been developed 6/22/2007 10:41:44 AM Mainly men which theoretically help reduce erectile dysfunction by assisting the surgeon to identify the nerves. Laparoscopic approaches reduce hospital stays but it is unclear whether surgical or oncological outcomes are improved. Cryoablation is rare except in select centres and is accompanied by significant incontinence and erectile dysfunction. For cancers that have spread beyond the prostate, radiotherapy and hormone therapy are the options of choice. Hormone therapy relies on the fact that most prostate cancers depend on a continuing supply of androgens, mainly testosterone. Reducing the amount of circulating testosterone by removing the testicles (orchidectomy) or by medical castration can help to control prostate cancer and relieve symptoms for months or years. Pharmacological treatment may often be used as an adjunct to surgical intervention when margins are positive and PSA starts to rise after radical prostatectomy (DH 2000a). There are two main types of pharmacological therapy: luteinising hormone releasing hormone (LHRH) analogues and total androgen ablation or blockade. LHRH analogues act directly on the pituitary gland to inhibit the release of follicle stimulating hormone and luteinising hormone, thus blocking production and release of testosterone. Total androgen blockade is used when a patient no longer responds to other hormonal treatments. Some antiandrogens are given in conjunction with an LHRH analogue or bilateral orchidectomy. This regimen blocks the effect of all circulating testosterone, including that produced by the adrenal glands (Griefzu 2000). These treatments are not without side effects, in particular hot flushes, decreased libido, erectile dysfunction, lethargy, weight gain and mood changes. Moreover, bone loss and osteoporosis are serious consequences of hormone treatment that have, until recently, been overlooked. Men on hormone replacement are at high risk of hip fractures and vertebral compression and must be advised to follow a calcium-rich diet and include a daily calcium supplement. Cytotoxic chemotherapy using drugs such as methotrexate to prevent growth of the malignant cells may also be employed, but this is a late Ch004-F10347.indd 101 101 stage treatment. However, none of the above nonsurgical treatments is shown to be superior and none is wholly effective (Marsh 1992, DH 2000a). At present there is no definitive evidence as to which is the best treatment, especially for early stage tumours, one reason being that some people with early stage disease will often live 10 years or more if no treatment is used. However, it is difficult to predict what course prostate cancer will take in an individual. It is therefore essential that the decision for treatment is shared with the patient and information on outcomes is discussed. The study by Hall et al (2003) shows that factors beyond ‘cancer cure’ are important to patient treatment decisions (such as risk of incontinence and/ or sexual dysfunction) and improved educational approaches are needed to aid decision making. Radical surgery Radical prostatectomy (RP) with a nerve-sparing technique is seeing increased popularity in the UK for localised disease. However, considerable morbidity exists following RP, including erectile dysfunction and urinary incontinence, the incidence of which ranges from 2.5 to 87% depending on definitions, method and time of data collection (Krane 2000, Parekh et al 2003). Davidson et al (1996) found that in 188 previously continent men 56% were incontinent following a radical prostatectomy, 21% were incontinent 3 months postoperatively and 14% were still incontinent at 1 year. Moul et al (1998), using a patient self-reporting incidence, found an 87.4% incidence of incontinence. In a similar study by McCallum et al (2001), of the 180 men questioned, 21 were still incontinent 2 or more years after surgery. Half experienced stress urinary incontinence on urodynamics as well as a component of detrusor dysfunction. Impaired quality of life and reduced self-esteem following radical prostatectomy have been discussed by many authors (Butler et al 2001, McCallum et al 2001, Alivizatios et al 2003). Quality of life for men with incontinence is negatively affected, with many patients viewing incontinence as the most bothersome symptom. However, Alivizatios et al (2003) suggest that, depending on the individual’s opinion, inconti- 6/22/2007 10:41:44 AM 102 PROMOTING CONTINENCE nence may be a minor problem which does not have a large impact upon quality of life; their data suggest that erectile dysfunction is the most disturbing complication after radical prostatectomy. Postprostatectomy incontinence It is thought that the pathophysiology of postprostatectomy incontinence may be due to sphincteric dysfunction, detrusor dysfunction, or both. MacDiarmid (2001) describes stress urinary incontinence secondary to intrinsic sphincter deficiency but many patients also have bladder dysfunction. In a study by Chao and Mayo (1995), 57% reported sphincter weakness and 39% detrusor dysfunction; 50% presented with a combination of factors. Anastomotic strictures can occur in 5–24% of patients (Chao & Mayo 1995). It is thought that there are four main factors affecting continence: 1. Pelvic muscle function 2. Trigonal denervation 3. Absence of urethral postvoid milking (Wille et al 2000) 4. Bladder instability following urethral catheterisation. Electromyography profile Electromyography (EMG) is the study of bioelectric activity of muscles. The activity is measured in microvolts and is a very useful adjunct when teaching pelvic floor exercises because it enables objective visual and audible measurement of pelvic floor function (see also Ch. 3). EMG units are widely available and are a very useful monitor when assessing pelvic floor contraction. It has been suggested that a low EMG profile is an identifiable risk factor (Rigby 2001); further research is necessary to identify if preoperative low EMG recordings also relate to a postoperative risk of incontinence. tatectomy and showed 70% improvement in symptoms. Van Kampen et al (2000), in a similar study, showed improved outcomes with intervention. However, the most recent Cochrane Review (Hunter et al 2006) notes that studies vary widely in quality, with small varied samples and imprecise outcome measures. Some evidence that PFMT may help is a modest reduction in incontinence up to 3 months post surgery; after that point, however, the benefit is minimal. Sueppel et al (2001) suggested that starting biofeedback and PFMT before surgery improved patient outcomes; their study used biofeedback training. There remain many unanswered questions about the initiation of exercise both pre- and postoperatively. Of importance, however, is that men value the support they receive from the nurse or the physiotherapist, indicating the importance of regular follow-up and supportive care after major surgery for prostate cancer. There are many variations on the PFMT protocols. Dorey (2001b) suggests that pelvic floor exercises should be individually taught to make sure the patient is lifting up the pelvic floor and not bearing down. Men can be encouraged to tighten and lift the pelvic floor muscles as in the control of flatus or the prevention of urine flow (Box 4.5). It is important to carefully assess that the exercise are done properly and some units recommend digital rectal examination (Dorey 2001b). Bladder retraining Bladder retraining is useful to manage symptoms of urinary urge and frequency (see Ch. 3). Bladder retraining is used to describe the educational and behavioural approach to re-establish bladder control; the purpose is to restore a normal bladder pattern. It is recognised that detrusor dysfunction is a common complication of radical prostatectomy and many patients benefit from combined bladder retraining and anticholinergic treatment. Pelvic floor exercises Fluid intake A number of uncontrolled, non-randomised studies have suggested benefits of pelvic floor muscle exercise pre- and post radical prostatectomy. Burgio et al (1998) treated 20 men postpros- Following prostate surgery men are advised to drink enough to keep the urine clear in colour and free from debris. Once the catheter is removed it is important to review fluid intake both in terms Ch004-F10347.indd 102 6/22/2007 10:41:44 AM Mainly men Box 4.5 Pelvic floor exercises for men STANDING UP Stand with your feet apart and tighten your pelvic floor muscles as if you are trying to stop the flow of urine. If you look in a mirror, you should be able to see the base of your penis move nearer to your abdomen and your testicles rise. • Hold the contraction as strongly as you can • Try to avoid pulling in your abdomen or tensing your buttocks • Perform three maximal contractions in the morning, holding for the count of . . . seconds • Perform three maximal contractions in the evening, holding for the count of . . . seconds SITTING DOWN Sit on a chair with your knees apart and tighten your pelvic floor muscles as if you were lifting your pelvic floor off a drawing pin. • Hold the contraction as strongly as you can • Try to avoid pulling in your abdomen or tensing your buttocks • Perform three maximal contractions in the morning, holding for the count of . . . seconds • Perform three maximal contractions in the evening, holding for the count of . . . seconds LYING DOWN Lie on your back with your knees bent. With the knees apart, tighten your pelvic floor muscles. • Hold the contraction as strongly as you can • Try to avoid pulling in your abdomen or tensing your buttocks • Perform three maximal contractions in the morning, holding for the count of . . . seconds • Perform three maximal contractions in the evening, holding for the count of . . . seconds WHILE WALKING Try lifting your pelvic floor up 50% when walking. AFTER URINATING After you have passed urine, try tightening your pelvic floor muscles strongly to avoid the embarrassing dribble. THE KNACK Try tightening just before and during activities which increase your abdominal pressure such as coughing, sneezing, lifting and getting out of a chair. Reproduced with permission from Dorey (2001b). Ch004-F10347.indd 103 103 of volume and type. There is much confusion over how much we should drink and there is a consensus of opinion that a fluid matrix offers a validated research-based approach (Abrams & Klevmark 1996). As a guide, a matrix suggests intake based on body weight; for example, a 76 kg (12 st) person should aim to consume eight drinks (2.3 litres or 4.2 pints) per day (30 ml/kg). Bowel care There are very few data on bowel management postprostatectomy; however, Hall et al (2003), in a study on decision making, found bowel dysfunction to be a common unpleasant surprise after treatment. It is recommended that pre- and postoperative advice be given on avoiding constipation, for which a dietary supplement of linseed can be very beneficial. Containment advice Moul et al (1998) reported that 39% of patients needed protection to contain incontinence. Products for men are rarely available in chemists and more frequently they purchase either inappropriate general containment products available in many large retail outlets or resort to female products and even babies’ nappies. An overview of containment products and appliances for men is provided below, with more detailed discussion in Chapter 10. MANAGING INCONTINENCE Although many people with incontinence can be successfully cured with appropriate management, many others have persistent incontinence that can only be managed symptomatically with appliances such as pads to ensure social continence (see Ch. 10). Alleviating the often unpleasant and undesirable consequences of urinary incontinence may be a short-term measure (during treatment) or a long-term strategy when other options have been exhausted. Management options for males can be grouped into two major categories: containment aids and conduction aids. Examples include small pouches for dribbling incontinence and urinary sheath drainage systems, respectively. 6/22/2007 10:41:44 AM 104 PROMOTING CONTINENCE There are some absorbent products for low levels of incontinence specifically designed for males: the ‘dribble pouch’ is designed to fit over the penis and absorb small amounts of incontinent urine; the ‘leaf’ fits over both penis and scrotum. These pouches are usually disposable and are held in position by means of a washable jockstrap or tight-fitting underpants. Conduction aids Urinary sheaths The urinary sheath is a method of managing urinary incontinence, which is unique to males, sometimes referred to as condom or external catheters. Sheaths are supplied as one- or twopiece systems, and some of those available come complete with their own applicator. A number of problems have been associated with the use of urinary sheaths such as the sheath becoming detached, irritation of penile skin and difficulty in self-application if manual dexterity is poor. Proper patient assessment, correct fitting and follow-up should ensure best use of the product although not all men can be successful with a sheath system. It is doubtful whether there is one universal best sheath system and it may be advisable to provide the patient with a selection to try. A number of criteria must be satisfied in order for an individual to be fitted with a urinary sheath, whether it is a two-piece or a one-piece system. The nurse or person fitting the sheath should check that: ● ● ● ● the penis is not retracted the skin is not broken or inflamed (although a barrier cream may be used) the individual is not confused and at risk of pulling the sheath off or leaving it on indefinitely the individual has sufficient manual dexterity if self-caring, or alternatively that the sheath can be applied by a carer or health professional. Despite the fact that these devices come in a variety of designs and that most manufacturers provide a range of sizes, it is essential that the penis is not too retracted for the successful attachment of a sheath. If the penis is retracted in any way, if the Ch004-F10347.indd 104 man is obese or if there is herniation around the base of the penis, then it is unlikely that this technique can be applied. It is helpful to try a sheath over a 5-day period to test if this approach is suitable for the individual. If the sheath can be kept in place for more than 12 h then it is probably an appropriate technique. Confused men are very likely to pull off a urinary sheath and this method of management may be unsuitable for such clients (Irvine 1991). This may account for the very low use of urinary sheaths in psychogeriatric units (Stott et al 1990). Sheaths are generally not suitable for men with obstruction, or with symptomatic urinary infection (Button et al 1998). Guidance on fitting a penile sheath is provided in Box 4.6. See also the case study in Box 4.7. Drainage systems for use with a sheath are similar to those used with an indwelling catheter (see Ch. 10). These include free-standing and smaller body-worn drainage bags. Urine bags are made by several manufacturers and come in a variety of sizes and shapes, with different methods of attachment and a variety of tap fittings. As with other products, patient assessment (including leg length and manual dexterity) and individual patient preference are vital considerations when selecting a product. Pubic pressure device A second group of male conduction aids are those generally termed body-worn urinals or pubic pressure devices (see Ch. 10). This form of appliance is most often used in men who are unable to wear either a dribble pouch or a urinary sheath because they have a retracted penis – the penis is effectively too small to hold the appliances in place. Pubic pressure devices work by exerting pressure around the base of the penis and are fitted by an experienced appliance fitter. The device consists of a rubber cone held in place by means of waist and groin straps and attached to a leg drainage bag. Users sometimes complain of discomfort such as sweating and soreness, which is perhaps not surprising given the bulkiness of the device. In suggesting this option, consideration needs to be given to the individual’s ability to apply the product and its acceptability. 6/22/2007 10:41:44 AM Mainly men Box 4.6 Fitting a penile sheath When a decision has been made to try a penile sheath for managing urinary incontinence, part of the success for the wearer is selecting the right size, type and fitting of the sheath. Most manufacturers offer a one- or two-piece system in a range of sizes from 22 mm to 35 mm. 1. First, the size of the penis can be measured using a specially designed measuring device provided by the manufacturer. The circumference is estimated by placing the device at the base of the penis so that the fit is not too tight or too big. The size of the sheath required is shown on the measuring device at that position. 2. Once the size is chosen, some samples of different makes of sheath should be given for the patient to choose from. 3. Wash and dry the penis but do not apply talc or creams as this may prevent the sheath from forming a secure seal against the skin. 4. Take the sheath from the packet and using the packet, cut a hole in the middle which can go over the penis to keep the pubic hair away from the shaft of the penis. Make sure the foreskin is kept forward. 5. If using the one-piece self-adhesive sheath, place the penis into the sheath leaving a small gap (about 1 cm) at the bulbous end and then gently unroll the sheath the length of the penis and secure firmly by pressing on the penis. 6. If using the two-piece system, carefully stretch the adhesive strip before winding it around the shaft of the penis. This allows for any change in penis size while wearing the sheath. Roll the sheath over the adhesive strip in the same way as described above. 7. Remove the protective ‘collar’ made from the packet and discard. Attach the drainage bag securely making sure that the tube’s connector goes past the ‘waist’ of the outlet tube and then strap to the leg (straps are provided with bags). 8. Sheaths are durable for 24 h’s wear, but sometimes they remain in place for a longer period. 9. To remove a sheath, simply roll it off over the tip of the penis and discard. 10. Wash and dry the genital area thoroughly after removing the sheath and before replacing it with a fresh one. Ch004-F10347.indd 105 105 Indwelling catheterisation Catheterisation is usually considered a last resort in the management of incontinence, and indwelling catheters are usually only chosen when other strategies have failed. Chapter 10 discusses the issues associated with catheterisation and catheter management. However, catheterisation is the usual choice in cases of AUR to decompress the bladder to prevent ureteric reflux and backpressure to the kidneys. Acute urinary retention (AUR) AUR refers to the sudden inability to pass urine and is characterised by painful distension of the bladder. It is a common condition; more than 1 in 10 men in their 70s will experience AUR, while the risk for men in their 80s is nearly 1 in 3 (Jacobsen et al 1997). However, there is some evidence that the incidence is declining, an observation that may partly be explained by a trend towards earlier presentation of men with LUTS (Clifford et al 2000). Our understanding of why men develop AUR is limited, but there are several elements that contribute to its development: ● ● ● ● Events that increase the resistance to the flow of urine (e.g. prostatic obstruction, urethral stricture or increase in muscle tone) Interruption of the sensory innervation of the bladder wall (e.g. diabetic cystopathy) or the motor supply to the detrusor muscle or secondary to the influence of drugs Events that lead to overdistension of the bladder (e.g. after general anaesthesia, particularly for orthopaedic procedures) Prostatic infarction or other causes of inflammation. The primary management of AUR is catheterisation, which may be undertaken by general practitioners or hospital doctors. A urethral catheter is most commonly used in the UK (Manikandan et al 2004) although some favour a suprapubic approach, particularly if the catheter is going to stay in place for some time. As a catheter in place at the time of surgery is associated with an increased risk of bleeding and sepsis due to bacterial colonisation, it is preferable 6/22/2007 10:41:45 AM 106 PROMOTING CONTINENCE Box 4.7 Case study: Examining the effectiveness of continence care Henry is a 76-year-old gentleman of previous good health who was admitted to an acute medical ward following a cerebrovascular accident (CVA). He had recovered well from his stroke and was hoping to return home in the near future. However, he was still experiencing problems with his bladder. Although continent during the day, Henry wet the bed most nights. The nurses on the ward had fitted him with a urinary sheath after his attempts to use urine bottles had proved unsuccessful. Henry was unable to fit the sheath himself and even when fitted by the nurses it rarely stayed on all night. Henry had lived alone prior to admission but planned to live at his daughter’s on discharge from hospital. However, there were two practical difficulties: ‘Who would apply the sheath?’ and ‘How would they deal with the washing and the spoiling of bed linen/mattress when the sheath fell off?’ The continence nurse specialist was asked to help. Henry explained his distress, frustration and embarrassment. The care plan in the nursing notes referred to the need to test the patient’s urine, assess his constipation risk and do a 3-day continence chart. The evaluation column of the care plan recorded that a urinary sheath had been applied and made reference to a ‘wet bed’. The notes indicated that the urine test was ‘NAD’ and that ‘bowels’ had been ‘well opened’ on several occasions. A 3-day fluid volume chart had been partially completed 2 weeks previously and filed in the notes. There was no evidence that the doctor had been informed of the patient’s continence problem. QUESTIONS • What factors may have influenced the effectiveness of Henry’s care? • What could be done to ensure that his continence care was more effective? POINTS FOR REFLECTION It may help to consider the following issues: • Why was urine bottle use unsuccessful? Had his stroke or another coexisting complaint affected Henry’s grip? • Why wasn’t the sheath staying on? There was no reference to the size of the appliance in the care plan. Had the correct sheath size been determined Ch004-F10347.indd 106 and communicated to everyone who was involved in assisting Henry to change the appliance? • Was a sheath appropriate? Henry could not fit it himself and no one was available to help at home. He did not like the sheath. Had he been offered a choice? • Was Henry’s incontinence really intractable? What was really causing it? The fluid volume chart was incomplete. Medical staff were not aware of the continence problem. Would Henry’s incontinence problem have benefited from the knowledge of other members of the multidisciplinary team? WHAT WOULD HAVE CONSTITUTED A DESIRABLE OUTCOME FOR HENRY? • Option One: Continence. • Option Two: A management solution, acceptable to Henry and manageable by him with minimal risk of a wet bed with resultant distress. TREATMENT PLAN Henry’s continence problem was thoroughly assessed and an individual plan of care established. The assessment revealed a high urine output at night, which was also the time Henry was least capable of reaching the toilet/using a bottle because he was tired and had taken sleeping pills whilst in hospital. (He had been unable to sleep through worry.) Henry was prescribed furosemide (frusemide) at 6 p.m. each evening to eliminate his urine load and reduce the high volume of urine produced at night when he was least able to cope with it. He was provided with a urine bottle with a non-spill adapter, as his grip was weak, especially when tired. He was also weaned off his sleeping pills as these had been started during his hospital stay and had added to his drowsiness when he did need to awaken to pass urine. OUTCOMES Henry was continent on discharge (but bought a protective bed sheet and took the continence nurse’s contact number just in case!). Effective care had been achieved based upon a comprehensive assessment of the problem, goals that were patient focused and negotiated with Henry and his daughter, and an individualised plan of care which served to ensure that all those involved knew of his requirements. 6/22/2007 10:41:45 AM Mainly men 107 Box 4.8 Case study: Intermittent self-catheterisation Mr Williams is a 73-year-old retired gentleman living in his own semi-detached bungalow within walking distance of the shops and his local pub. He worked as a lorry driver for 30 years and considers himself to be pretty healthy. He has been a non-smoker for over 40 years. He was referred by his wife who was nagging him about having to wash underwear smelling of urine. When seen in the continence clinic, Mr Williams complained of: leaking urine with walking, coughing or getting up quickly. He related the problem to the ‘pills’ the doctor gave him for his prostate. He had gone to see his GP about 3–4 months ago because of increasing difficulty in starting his stream; once started it would stop and start and often dribble at the end. It also took him several minutes to empty his bladder. He had no symptoms of urgency and was only waking up at night once or twice, although he was not sure if he awoke because of a full bladder because he didn’t usually feel full even if he went to the toilet. He thought he woke up because recently his penis and anal area had been getting itchy. He was putting cream on a few times a day and at night to help soothe the irritation. His GP had checked his prostate and thought the pills might help. They had improved the volume of the urine stream but made him a bit dizzy when he stood up quickly and seemed to make the ‘dribbling’ worse. Mr Williams has type 2 diabetes controlled by diet and hypoglycaemics (Diabinese and Metformin). He rarely goes to his GP and does not remember the results of his most recent blood sugar test or when it was taken. He denies any history of heart disease or hypertension but erectile function is poor. There is no complaint of haematuria, dysuria or UTI; bowels are regular with no straining or flatus or stool incontinence. On examination, his ankles are oedematous extending up to mid-calf and there are signs of venous stasis in both ankles and calves. Abdominal examination reveals an obese abdomen, bladder seems palpable but it is difficult to be certain because of abdominal fat. There is a bilateral, moist, red patchy rash in inguinal creases. Post-void residual ultrasound was 1500 ml after a prolonged void of 300 ml. BP after lying down for 5 min was 163/100. Urinalysis (by dipstick) is positive for protein; glucose; leukocytes. Ch004-F10347.indd 107 TREATMENT PLAN The most probable diagnoses are: incomplete emptying, likely due to diabetic neuropathy; bacteriuria due to chronic urinary retention; hypertension; risk of skin breakdown and infection. Ask Mr Williams what he thinks has contributed to his bladder problems and what his goals for treatment are. Once these are established, explain to Mr Williams that his bladder may not be emptying properly because his diabetes has affected the nerve supply to the bladder muscle so that it doesn’t contact well or give him the sensation of having a full bladder. The neuropathy may also be the cause of his poor erections. Explain that poor erections may be a sign of cardiovascular disease and that a visit to his family physician for a check up is warranted. Suggest that he learns how to self-catheterise to drain his bladder effectively and show him how to do this. Ask him to keep a record of how much he drinks and the type of fluid, how much he voids spontaneously and how much he catheterises. Request that initially catheterising should be done 4 times a day (ideally to keep the bladder volume at approximately 500 ml or less); recommend topic antifungal cream for the skin rash on the perianal area and glans penis. Obtain urine for culture and sensitivity and microscopy. Mr Williams should be advised to go to his GP for a full check up, including blood pressure, eyesight changes, blood glucose levels, urinalysis report and review of his medication. He may also benefit from seeing the nurse in the outpatient diabetic clinic for advice on foot and skin care. Request that Mr Williams return to see you in 2 weeks for a follow-up visit, at which time you will review his fluid volume diary and see how he is managing with the catheterisations; you will also check on the status of his skin rash which you explain is common in people with incontinence but is treatable first by the antifungal cream and then by keeping the area dry and protected with a cream. (NB: Mr Williams should not take sulphonamide antibiotics when he is taking Diabinese for his diabetes). Reinforce the importance of having both his blood pressure and blood sugars under good control in order to preserve his eyesight, renal health and cardiovascular status. 6/22/2007 10:41:45 AM 108 PROMOTING CONTINENCE that men undergo a trial without catheter (TWOC) after an episode of AUR in the hope that perioperative morbidity will be reduced even if they do not avoid surgery altogether. A further reason for trying to avoid emergency surgery for this condition is that men who had a prostatectomy following AUR had a worse outcome in terms of symptom reduction and improvements in quality of life than those undergoing planned prostatectomies as demonstrated in the National Prostatectomy Audit (Mebust et al 1989). There is some evidence to suggest that catheter drainage combined with alpha-blockers may be associated with a good chance of successful voiding (McNeill et al 1999, 2004). Choice of product Continence appliances are not without their problems and the decision to use/choice of product should be carefully considered (see Ch. 10). Although forming part of a set of consensus guidelines aimed at the primary healthcare team, the following algorithm and five principles are equally helpful in guiding decision making on product use (Button et al 1998): ● ● ● Intermittent self-catheterisation ● Intermittent self-catheterisation (ISC) is now the option of choice for a wide range of urinary problems involving poor bladder emptying, offering a viable and more convenient alternative to longterm urethral catheterisation (see Ch. 10). ISC is currently regarded as suitable for most patients with bladder symptoms related to incomplete emptying/urinary retention (DH 2000b). The main advantage of ISC is that, after a brief period of training, it can be carried out by the patient in his own home without the need for regular nursing supervision. ISC is suitable for almost any patient, providing they have the necessary cognitive ability, manual dexterity and motivation (see Box 4.8). Occlusive devices Apart from artificial sphincters, which are inserted surgically and mentioned above, the only other form of device aimed at preventing outflow of urine is the penile clamp. Penile clamps are an option for a carefully selected group of men who have normal penile sensation, cognitive ability and manual dexterity. They are not recommended for men with neuropathic disorders such as diabetes or multiple sclerosis. Intermittent use (e.g. when swimming) can greatly enhance men’s confidence in public places. Good patient teaching about the misuse of the penile clamp is mandatory to prevent skin breakdown, pain or oedema. Ch004-F10347.indd 108 ● The restoration of continence should be the aim for all persons. Assessment should precede any issue of aids or appliances. Individual patient/client choice should be a key consideration in determining a suitable management strategy. Care should include education in the correct use of any aid or appliance issued. Product suitability and requirements should be reviewed regularly. When choosing a product, the National Prescribing Centre (1999) suggests the use of the EASE mnemonic: ● ● ● ● How Effective is the product? (At containing odour and urine?) How Appropriate is the product for this patient? (Can they manage it easily, is it comfortable and discreet?) How Safe is the product? (Is it environmentally friendly, easy to dispose of?) Is the prescription cost Effective? In addition to comprehensive patient assessment and careful choice of product (which includes incorporation of patient views), it is essential that products are used effectively and according to the manufacturer’s instructions. Sexuality and LUTS The potential impact of urinary incontinence in general and the use of appliances in particular on the individual should not be underestimated. Alterations in body image, relations and sexual activity are issues that it would be all too easy to overlook (Royal College of Nursing 2000). Although these are arguably not subjects to be 6/22/2007 10:41:45 AM Mainly men broached until a sufficiently trusting relationship has been established between the healthcare practitioner and the patient/client, they are important considerations. The penis is considered by many to be the focus of male sexuality and Lawler (1991) has suggested that compared with female sexuality, male sexuality is more genital, less diffuse and more concerned with power and performance, and is more physical. Physiological changes in an older man such as prostatic disease will affect his genitalia and sexual performance. The argument for healthcare professionals to introduce questions about sexual function into their assessments of men presenting with LUTS is simple. There is now clear evidence that men with urinary symptoms are not only at an increased risk of sexual dysfunction but also that problems with sex significantly reduce the quality of these men’s lives. Moreover, knowledge about a man’s sexual function can significantly influence the management of his LUTS (Coombe 2003). The point behind asking questions about a patient’s sex life is that the information it reveals can have a significant influence on the choice of management. It is well known that several management options for BPH alone have sexual consequences. Surgery causes ejaculatory dysfunction in around two-thirds of patients, although it may improve erectile dysfunction (Brookes et al 2002). Finasteride can lead to decreased libido, erectile dysfunction and ejaculatory disturbance (Debruyne et al 1998) and the alpha-1A selective blocker tamsulosin may cause a dose-dependent incidence of abnormal ejaculation (Schulman et al 2001). In contrast, the alpha-1 selective blocker alfuzosin has been shown to have no significant link to sexual dysfunction (van Kerrebroeck et al 2000). Choosing the right medication is therefore essential. With regard to appliances and pads, essentially the message regarding sexuality is that a great deal can be done to maintain sexual image and also to maintain sexual activity. When a man is wearing a urinary sheath or a urinary catheter, provided that the collecting bag has been fitted correctly to the inside of the leg, there is no need for anyone else to know that a device is being worn. On the other hand, the use of pads may be Ch004-F10347.indd 109 109 more obvious as many of these are bulky. With improved products, which are smaller and more absorbent, the situation is improving. As with any kind of appliance, good skin hygiene is essential in order to prevent odour and discomfort. These measures will reduce the impact of urinary incontinence on sexuality. One of the problems arising from the use of devices to manage urinary incontinence is that of altered body image and this is particularly the case where an appliance is being worn (Wheeler 1991). Sexual activity is possible even with an indwelling urinary catheter in situ. The catheter can be taped back along the shaft of the penis, or alternatively it can be removed altogether and replaced after intercourse. Replacement is usually done by the man himself or a partner/carer who has been taught the technique. The outlet to the bladder is blocked during erection of the penis so it is unlikely that urine will leak during intercourse. Involving a partner in the care of an individual, whether directly in terms of changing catheter bags or continence pads, or indirectly as a source of support, must not be done without careful consideration. Blannin (1987) suggests that where a partner adopts the role of ‘nurse’ this may produce conflicts in the relationship resulting in a loss of self-esteem and sexual desire. It may also be prudent to emphasise that age is no barrier to experiencing a close sexual relationship (Duffin 1992). Clearly, consideration of sexuality and sexual function requires a sensitive approach and discussion between partners. It is possible that specialist advice may need to be sought. Any sexual dysfunction as a result of urinary incontinence should be brought to the attention of an appropriate therapist, such as a specially trained counsellor, a continence advisor or general practitioner who may be able to offer help and advice. It may also be appropriate to inform individuals and their carers of the existence of local support groups and services, as well as national organisations such as the Continence Foundation (http://www. continence-foundation.org.uk). CONCLUSIONS In the nursing strategy document Making a Difference (DH 1999) continence is identified as one of 6/22/2007 10:41:45 AM 110 PROMOTING CONTINENCE the eight fundamental and essential aspects of care that sometimes fall ‘below acceptable standards’. LUTS in men is common and is usually associated with the prostate but it is essential that a thorough assessment of all possible causes is investigated before making a diagnosis. For men, incontinence impacts on every aspect of their life including their sexuality. For any man the diagnosis of prostate cancer is devastating; the treatment can also leave many men with significant incontinence. Through sharing of information and awareness of potential problems, nursing care can improve. As healthcare professionals we are challenged to provide care for a growing cohort of patients with post radical prostatectomy incontinence. There is no doubt that these men need advice and support. KEY POINTS FOR PRACTICE ● ● Overactive bladder symptoms are just as common in men as in women, but incontinence is more prevalent in women The prostate plays a major role in bladder function in men over the age of 50 years ● ● ● Radical surgery for prostate cancer can cause stress incontinence in men. The treatment is the same as for women, i.e. pelvic floor exercises Alpha-blockers are recommended as first-line treatment in benign prostatic hyperplasia (BHP); they have a rapid onset of action 5-Alpha reductase inhibitors reduce the volume of the prostate and reduce obstruction in BPH Useful website http://www.orchid-cancer.org.uk: Orchid Cancer Appeal provides a wealth of information on testicular and prostate cancer ranging from innovative research to patient awareness campaigns. Message boards allow both patients and medics alike to interact on this award-winning site. ACKNOWLEDGEMENTS With acknowledgements to Katherine Moore for her contribution to this chapter. References Abrams P 1997 Urodynamics, 2nd edn. Springer, London Abrams P, Klevmark B 1996 Frequency volume charts: an indispensable part of lower urinary tract assessment. 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